Security Claude Opus wrote a Chrome exploit for $2,283 Pause your Mythos panic because mainstream models anyone can use already pick holes in popular software Anthropic withheld its Mythos bug-finding model from public release due to concerns that it would enable attackers to find and exploit vulne… …
… "As part of our ongoing safety commitments as described in our Claude Opus 4.6 announcement , we are rolling out new cyber safeguards for Claude Opus 4.6," the company's documentation explains. …
… Russinovich had Claude Opus 4.6, released early last month , look over the code. …
… Restricting these models from self-selection limits our ability to learn with the industry's leading technology." That sentiment was echoed by an individual posting under the name Nguyễn Thế Toàn: " T he removal of premium models such as GPT-5.4, Claude Opus, and Claude Sonnet makes learning progra… …
… The model points to issues like "Claude Code's prediction-first behavior is dangerous on capital-at-risk projects" 46212 , "Claude Code is unusable for complex engineering tasks with the Feb updates" 42796 addressed by Claude Code head Boris Cherny , "Artificial degradation, Acquisition Bias, and u… …
… Another factor is that the large one-million-token context window available on paid plans with the Claude Opus 4.6 or Sonnet 4.6 models increases costs, especially with cache misses. …
… MORE CONTEXT Anthropic mocks up Claude Design to draft fancy new pink slips for marketing teams Anthropic squeezes enterprises by ejecting bundled tokens from seat deal Attention data hoarders: Alexa loses its Plex appeal as voice feature gets canned Claude Opus wrote a Chrome exploit for $2,283 "A… …
… Mythos is markedly different from Claude Opus 4.6, which Anthropic only recently said was not very skilled at developing working exploit code. Where Opus 4.6 managed an exploit development success rate of just over zero percent, Mythos Preview generated a working exploit 72.4 percent of the time. …
… "At pass@16, Leanstral reaches a score of 31.9, comfortably beating Sonnet by 8 points." MORE CONTEXT In the name of science: Boffins build fart-tracking undies AI still doesn't work very well, businesses are faking it, and a reckoning is coming Nvidia wraps its NemoClaw around OpenClaw for the sak… …
… As of March 2026, the top US model, Claude Opus 4.6 scored 1,503 on the Arena benchmark, just 2.7 percentage points above ByteDance's Dola-Seed Preview at 1,464. That lead had narrowed as of April 9, 2026 , with Claude Opus 4.6 Thinking at 1,548, closely followed by Z.ai's GLM-5.1 at 1,530. …